For years, military sharpshooting instructors taught their students to close their non-dominant eye as a fundamental of shooting. The idea behind this practice is to lower the activity of the half of the brain that isn’t technically being used, freeing it from distractions.
Over the years, well-practiced shooters have determined that closing one eye helps you line up your target more easily. So, why keep both eyes open?
Former Army Green Beret Karl Erickson will break down for you.
When a hectic situation arises, and you need to draw your weapon, you’re going to experience physical and physiological changes. Most noticeably, the gun operator’s adrenaline will kick up, prompting the “fight or flight” response.
During this response, the body’s sympathetic nervous system releases norepinephrine and adrenaline from the adrenal glands, which are located right above your kidneys, as shown in the picture below.
Once these naturally produced chemicals surge through your bloodstream, your heart rate increases and your eyes dilate and widen.
These physical changes occur because the human brain is screaming to collect as much information as possible. When these events take place, it becomes much more challenging for the shooter to keep their non-dominant eye closed.
Thoughtfully attempting to keep that non-dominant eye shut can potentially derail the shooter’s concentration, which can result in a missed opportunity for a righteous kill shot.
So, how do we practice shooting with both eyes open?
When using shooting glasses, spread a coat of chapstick across the lens of the non-dominant eye. This will blur the image and help retrain the brain to focus a single eye on the target, and, over time, will eventually lead to good muscle memory.
Check out Tactical Rifleman’s video below to learn the technique directly from a Green Beret badass.(Tactical Rifleman | YouTube)
The U.S. Army has re-embraced sleeve rolling to the rejoicing of soldiers around the world.
But many soldiers have never rolled their uniform sleeves, and none have done it in the past few years. Plus, the current uniforms have pockets and pen holders that make it difficult to roll the sleeve in a neat manner.
Luckily, the Army spotted the problem and released a video through the Defense Media Activity that shows exactly how modern troops should roll camo-out sleeves.
If you’re currently logged into Facebook, you can check it out below. If not, click on this link to see it on Soldiers Magazine’s page.
(Video by U.S. Army Staff Sgt. Jose Ibarra, Defense Media Activity. H/t Soldiers Magazine)
The Mitsubishi A6M Zero is one of the great warplanes of all time. It certainly got a lot of press as the primary fighter the Americans faced in the great carrier battles in the Pacific Theater.
That being said, it wasn’t Japan’s only fighter. In fact, the Japanese Army had its own front-line fighter.
The Nakajima Ki-43 Oscar first took to the skies in 1941, about six months before the attack on Pearl Harbor. It was intended to replace the Nakajima Ki-27 Nate, an earlier monoplane fighter.
In some respects, the Japanese Army was much smarter with the Oscar than the Japanese Navy was with the Zero. MilitaryFactory.com notes that the Ki-43 was continually improved during the war. The Ki-43-Ia started out with two 7.7mm machine guns, but by the time the Ki-43-Ic emerged, that had changed to two 12.7mm machine guns.
Later versions, like the Ki-43-II and Ki-43-III, were constantly improved with things like self-sealing fuel tanks and armor to protect the pilot. The Zero never saw those improvements until it was far too late to affect the outcome of battles like the Marianas Turkey Shoot.
Ultimately, over 5,900 Ki-43s were produced. After World War II, they saw action with the Chinese, French forces in Indochina, North Korean forces, and even with Indonesian rebels. The plane turned out to be a solid ground-attack plane, capable of carrying two 250 kilogram bombs.
Below is a Japanese newsreel showing Ki-43 Oscars in action.
KRISS USA’s Michael Hou shows off the latest from KRISS Arms, SPHINX Arms, and KRYTAC.
Could Boeing be out of the fighter business in the near future? That question has been kicking around in recent years as air forces are looking to advanced planes like the Lockheed F-35 Lightning or for cheaper options like the Saab Gripen.
A big reason is that Boeing’s entry for a new Joint Strike Fighter, the X-32, lost that competition. A 2014 report from DefenceAviation.com noted that Boeing was producing an average of four jets a month.
The company has made some sales for versions of the F-15E Strike Eagle, but aside from Australia, there have not been many export orders for the F/A-18E/F Super Horner and EA-18G Growler (granted, the Marines could use the Super Hornet to replace aging F/A-18C/D Hornets in a more expeditious manner). The company has marketed the Super Hornet to India in the wake of the problems India has had in adapting the Tejas for carrier operations, and did a video promoting an advanced F-15C.
Boeing is not completely out of the light jet business. It has teamed up with Saab for an entry into the T-X competition that also includes the Lockheed T-50 and the T-100 from Leonardo and Raytheon. It also recently got an order for 36 F-15QAs from Qatar, according to FlightGlobal.com. Qatar also bought 36 Eurofighter Typhoons and 36 Dassault Rafales.
Boeing is also preparing for an upgrade to the F/A-18E/F Super Hornet line. The Block III Super Hornet will feature conformal fuel tanks for longer range and improved avionics, including a new radar and better electronic countermeasures systems. President Trump’s budget proposals did include buying 80 more Super Hornets.
Such purchases could only be delaying the inevitable. The Navy and Air Force are reportedly planning a sixth-generation fighter in the FA-XX project, but that may still be years into the future.
On the streets of Long Beach, California, a new restaurant has opened where a quadriplegic Navy veteran focuses on hiring other disabled people — especially veterans — to staff the business.
Daniel Tapia, the owner of the restaurant 4th and Olive, told Fox LA, “I’m referred to what’s known as a walking quad, a high functioning quadriplegic. So, I can walk and move but I have a limited strength and feeling in my hands and feet.”
Tapia was a sommelier at another southern California restaurant until he was fired in 2014. Short on employment opportunities and hopeful that he could fight disability discrimination, he decided to launch his own establishment that would provide job opportunities for other disabled veterans.
Some of the vets, like Air Force veteran and bartender John Putnam, are fighting physical battles, but the restaurant also hires people with PTSD and traumatic brain injuries.
Co-owner and chef Alex McGroarty told Fox that the veterans are great employees.
“They work really hard,” he said. “If they’ve had a little trouble in the past, they are going to be really loyal and work hard for you.”
“By and large, it’s been a great process hiring these vets, and we can’t wait to hire more,” Tapia said in a recent YouTube video.
4th and Olive is located in Long Beach, California and serves food from the Alsace region of France.
Drill Instructor School is tasked with training the Marines that make Marines.
Lasting 11 weeks, the school is considered to be 10 times harder than boot camp. Each training class starts with 60 students, but there is a 15 to 20 percent dropout rate — mostly due to injuries.
Those that complete the grueling process are granted the 0911 MOS, and will go on to serve in one of the most legendary jobs in the U.S. military…as well as the nightmares of more than a few recruits.
Godzilla may be king of the monsters, but during the Cold War, he’d find the Caspian Sea a little crowded.
Now, Russia is building a new Caspian Sea Monster.
According to a tweet by the Russian embassy in South Africa, the Chaika A-050 is slated to enter service by 2020. The A-050 is what is known as an “ekranoplan,” or ground-effect vehicle. The Soviet Union pushed these airplane hybrids during the Cold War, largely because they offered a unique mix of the capabilities of ships and aircraft.
According to militaryfactory.com, the Lun-class ekranoplan is one such example. It had a top speed of 342 miles per hour — slightly slower than the B-29 Superfortress — which could go 358 miles per hour. However, the Lun carried six SS-N-22 Sunburn anti-ship missiles, which are limited for use on surface combatants like the Sovremenny-class destroyer and Tarantul-class missile boat. The Lun could climb to as high as 24,000 feet.
According to a 2015 report by Valuewalk.com, the Chaika A-050 will travel at speeds of up to 300 miles per hour, with a range of 3,000 miles. It will be able to carry at least nine tons of cargo or 100 passengers. However, a Sputnik News report indicated that the Russians could install the BrahMos missile on the new ekranoplan.
The BrahMos is a version of the SS-N-26 Oniks surface-to-surface missile that has been installed on a number of Indian Navy vessels. According to the Center for Strategic and International Studies, the BrahMos has a top speed of Mach 2.8 and a range of 500 kilometers. The missile carries a 300-kilogram warhead, and can hit surface ships or land targets. The missile can be used by submarines and surface ships.
When people think of the Vietnam War, they think of helicopter-borne Marines or soldiers taking on Viet Cong guerillas. They think of F-105s and F-4s going “downtown” to Hanoi, or ARC LIGHT B-52 missions. They don’t think about tanks slugging it out.
That’s the Arab Israeli-Wars, over on the other side of the continent of Asia.
Well, contrary to many people’s preconceptions, there was tank-versus-tank action in the Vietnam War. Not exactly on the scale of the Arab-Israeli wars, but when you’re the one being shot at, you’re dealing with a significant action.
Ben Het was a special forces camp overlooking one of the many infiltration points into South Vietnam from the Ho Chi Minh Trail. Among the units there were Operational Detachment Alpha A-244, which consisted of 12 Green Berets. They were backed up by a number of Montagnard tribesmen, a battery of 175mm howitzers, and M48 Patton main battle tanks, and had the mission of tracking movements by North Vietnamese troops in the area. When they found the enemy, they particularly liked calling in air strikes by F-4 Phantoms and A-1 Skyraiders.
On March 3, 1969, the North Vietnamese attacked the camp with a force that included PT-76 amphibious tanks. These tanks had a 76mm gun, but were lightly armored. In that battle, the M48 tanks engaged the PT-76s. While one M48 was damaged, with two crewmen dead, at least two of the North Vietnamese tanks were also destroyed, along with a BTR-50 armored personnel carrier.
The North Vietnamese were beaten back, and the Green Berets proceeded to evacuate their dead and wounded. Below, listen as retired Maj. Mike Linnane discusses his perspective of the Battle of Ben Het.
World of Warcraft, one of the world’s most successful RPGs, is releasing a new expansion where an army of demons invades the world, forcing heroes to fight beside a new demon hunter class to prevent the coming apocalypse.
“World of Warcraft: Legion” is a highly anticipated expansion with tons of changes to gameplay, class structure, professions, and more. Many players have already experienced pieces of the expansion by taking advantage of the pre-order perks. Since there’s so much going on, we’ll just give you a quick overview of new gameplay in Legion.
Legion offers gamers the chance to play as the new hero class, demon hunters — cursed elves who consume the blood and powers of demons to make themselves more powerful.
Drinking the blood grants them the ability to fly around the battlefield, shoot energy from their eyes, grow spiked armor, and explode in waves of fire.
New class abilities for all heroes and artifact weapons help make players feel truly powerful even as they’re facing off against demons larger than most buildings.
A new quest zone, the Broken Isles, has Alliance and Horde heroes facing off against the Legion in a hunt for the “Pillars of Creation” and the Tomb of Sargeras. Sargeras is the creator of the Legion who the demons are trying to revive.
To prevent it, heroes will have to fight through the Broken Isles, attempting to save mortally wounded dragons and topple invading armies to prevent a living hell from consuming the world.
The best thing about questing in the Broken Isles is that Blizzard made the new zones scale to the player’s level. So no matter what order a player fights through the new areas, the enemies there are powerful enough to pose a challenge without feeling impossible.
Players will get access to class halls where they can do quest lines unique to their character type.
Demon Hunters are marshaling armies against the Legion. Druids hunt down nightmares that have invaded their dreamscape. Mages seek to rebuild an elite order of battle mages, the Tirisgarde.
When players want to take some time away from the fight against the Burning Legion to play against each other, they’ll find that class changes have made player versus player combat much easier to enter.
The new, lighter spell books of Legion make it easy to build a toolbar that works for both PVP and player versus enemy content.
Grab the game today from battle.net to go and beat back the vanguard of the Legion. The full invasion comes on August 30.
Admittedly, I’d rather not be shot with either, but if I had to choose, I’d take a round from the AK47 over the M4 any day of the week. To understand why, it’s important to have a very basic look at the physics behind terminal ballistics, in this case being the science of what happens when a penetrating missile enters a human body. The first place to start is the Kinetic Energy Equation:
KE = ½ M (V12 – V22)
Breaking this equation down into its components, we have Kinetic Energy (KE) influenced by the Mass (M) of the penetrating missile, as well as the Velocity (V) of the missile. This make sense, and it is logical that a heavier, faster missile is going to do more damage than a lighter, slower missile. What is important to understand is the relative influence that Mass and Velocity have on Kinetic Energy, as this is key to understanding why I’d rather be shot by an AK than an M4.
You’ll notice that the Mass component of the KE equation is halved, whereas the Velocity component is squared.
For this reason, it is the Velocity of the projectile that has far more bearing on the energy that it dissipates into the target than the mass.
The V1-V2 component of the equation takes into consideration that the projectile might actually pass straight through the target, rather than coming to rest in the target. In this instance, the change in the Velocity of the projectile as it passes through the target (V1 being its velocity as it enters, and V2 being velocity on exit) is the factor that is considered when calculating how much energy the missile delivered into the target.
Naturally if the projectile comes to rest in the target (ie: no exit wound) then V2 equals zero and the projectile’s velocity as it entered (V1) is used to calculate the KE.
That’s enough physics for now, but you get the concept that the optimum projectile to shoot someone with is one that has a decent mass, is very, very fast, and is guaranteed to come to rest in your target, as to dissipate as much energy as possible into them, and hence do maximal damage.
The next concept to grasp is that of permanent cavitation versus temporary cavitation. Permanent cavitation is the hole that gets left in a target from a projectile punching through it. You can think of it simply like a sharp stick being pushed through a target and leaving a hole the diameter of the stick. The permanent cavity left by a bullet is proportionate to the surface area of the bullet as it passes through the tissue.
For instance, if an AK47 round of 7.62mm diameter at its widest point passes cleanly through a target, it will leave a round 7.62mm hole (permanent cavity). If this hole goes through a vital structure in the body, then the wound can be fatal. However, if the bullet passes through soft tissues only, then the permanent cavity can be relatively benign.
This is a slight oversimplification of the concept, as bullets will rarely remain dead straight as they pass through human bodies, as they have a tendency to destabilize, and the heavier back-end of the bullet will want to overtake the front.
This concept, known as yaw, increases the frontal surface area of the bullet as it passes through tissue, and hence creates a larger permanent cavity.
Far more damaging than the permanent cavity left by a projectile is the temporary cavity that it creates. Anyone who has ever watched the TV show MythBusters will have some familiarity with this concept, and it is best demonstrated using slow motion video imagery of bullets being shot into special jelly known as ballistic gelatin, which is calibrated to be the same density as human soft tissues.
What can be seen in these video images (below) is the pulsating dissipation of energy that emanates out from a bullet as it passes through the gelatin.
This is a visual illustration of the concept of temporary cavitation, and it allows the viewer to begin to appreciate the devastating effect that a high velocity missile can have once it enters a human body. The temporary cavitation is the transfer of Kinetic Energy from the projectile into the tissues of the target, and as we learned above, is relative to the mass and, more importantly, the velocity of the projectile.
As the energy of the projectile is dissipated into the tissues of the target the temporary cavitation pulverizes structures adjacent to the bullet’s tract, including blood vessels, nerves, muscles, and any solid organs that may be in close proximity.
For that reason the high velocity projectile does not need to pass directly through a structure in the body to destroy it. The higher the Kinetic Energy of the projectile the further out from the permanent cavity the temporary cavity extends.
Below is a slow motion video of a 5.56x45mm round (same as the M4 fires) hitting ballistic gelatine in slow motion. After watching, the medical provider can begin to appreciate the damage that gets done to tissues by the pressure wave of the temporary cavitation.
(Brass Fetcher | YouTube)
Another characteristic of the M4 round is the tendency for the bullet to disintegrate if it strikes tissue at a decent velocity. Despite being a jacketed round, owing to it being smaller, lighter, and faster than an AK47 projectile, it tends to yaw faster once it hits tissue and the shearing forces on the bullet once it is traveling at 90 degrees through the tissue often tears the bullet into pieces, thus creating multiple smaller projectiles and increasing the chances of all of the bullet parts remaining in the target, and hence dissipating more energy.
The AK47 round, being slightly heavier and slower than the M4 round will have a tendency to remain intact as it strikes tissue, and whilst it will penetrate deeper, it tends to remain intact and not yaw until it has penetrated much deeper than the M4.
The video below shows a soft point round being used, which theoretically should be more destructive than its full metal jacket counterpart, the video still illustrates nicely the significant penetration of the AK47 round without it yawing significantly or disintegrating.
I once saw a good case study illustrating this point nicely where a casualty had sustained an AK47 gunshot wound to the right lateral thigh and we recovered the intact bullet from the inside of his left upper abdominal wall. It had passed through approximately 1 metre of his tissues and shredded his small bowel, but the projectile hadn’t fragmented at all, and the temporary cavitation hadn’t done enough damage to be lethal. The casualty required a laparotomy to remove multiple sections of small intestine, but made a good recovery. That one is a story for another time.
(The Ammo Channel | YouTube)
Although an unpleasant injury to have, the fact that the AK47 round was travelling slower than an M4 at the same range would have been, coupled with the fact that the projectile remained intact and didn’t yaw significantly as in passed through him, meant the wound was nowhere near as devastating as the above-mentioned M4 injury in the same area.
It must be noted however that the comparison is far from perfect given that the M4 injury involved the bone, with the one immediately above passing solely through soft tissues.
So there it is, all things being equal, when all is said and done I’d rather be shot with an AK47 than an M4 on any day of the week. Naturally, as medical responders, it is always important to treat the wound and not the rifle that inflicted it, and I have certainly seen some horrendous AK47 wounds over the years and some relatively minor ones from M4s, so it all depends.
The main take home points for medicos are to be aware of the magnitude of damage that can be caused by the temporary cavitation resulting from high velocity missile wounds, and also if you find an entrance wound, there’s no telling where in the body the projectile might have ended up!